> What system calls use that many registers or have that many arguments?
Aha. I think I've got the reason why syscall number in r9 is not
optimal for OpenBSD/m88k. The largest storage consuming system call
is mmap, which would occupy eight 32bit registers and r9 should be
free for it. The change was neccessiated by off_t change, I guess.
Tohru Nishimura